The Union Apartments are a rundown apartment block off Apartment Street in Downtown Silver Pines, with a basement, four floors and a roof. In the full game's files, build 25806663, the building holds 29 rooms, 48 map areas and 68 items, documents and containers. Three chains of keys and locks run through it:
The codes for the building's three locks are on the Silver Pines puzzle solutions page. For the rest of the game, start at the Silver Pines guide hub.
| Field | Value |
|---|---|
| Area | The Union Apartments, an apartment block reached from Apartment Street in Downtown. Evidence: The game files, build 25806663; checked October 8, 2026. |
| Size | 29 rooms, 48 map areas and 68 items, documents and containers. Evidence: The game files; checked October 8, 2026. |
| Floors | A basement, four floors and the Roof. Evidence: Room floors in the game files; checked October 8, 2026. |
| Keys and locks | Three keys (Utility Room Key, Union Level 3 Key, Apartment 4B Key) and three code locks. Evidence: The game files; checked October 8, 2026. |
| Inventory upgrade | One Hip Bag, in the Stairwell. The game says it adds 2 inventory slots. Evidence: The game files; checked October 8, 2026. |
| Rooms named after the building | Union Apartments 1st Floor and Union Apartments 4th Floor, which the map labels Roof Access. Walkthroughs describe both as safe rooms with a payphone. Evidence: Room names in the game files; the payphones are reported by walkthroughs. |
| Connections | Downtown only, from the grounds in front of the building to Apartment Street. No key is needed on that path. Evidence: Map connections in the game files; checked October 8, 2026. |
The Silver Pines interactive map plots the same 68 points.
| Key | Where it is | What it opens | The game's description |
|---|---|---|---|
| Utility Room Key | Entrance | The Utility Room door outside the building | A key to the Utility Room at the Union Apartments. |
| Union Level 3 Key | No pickup spot in the files | The door from the Stairwell to the 3rd floor hallway | Found inside the Union building. |
| Apartment 4B Key | Roof | Apartment 4B on the 4th floor | A key to one of the apartments on the fourth floor of the Union building. |
| Floor 4 Button | 1A / Supervisor, behind the side door | The elevator's 4th floor stop | Elevator button made out of glass and plastic. Found at the apartments. |
The Utility Room Key is the first thing walkthroughs pick up: it is at the Entrance and opens the Utility Room, which you reach from outside the building. The Union Level 3 Key has no pickup spot in the map data because it is not lying in a room; walkthroughs report that it comes out of the washing machine once you feed it all four Laundry Tokens. The Floor 4 Button is not a key, but it does the same job for the elevator, and walkthroughs report fitting it to the elevator's panel to reach the 4th floor.
The game describes a Laundry Token as a "plastic token for operating a communal washing machine." The files place exactly four of them in the building:
Walkthroughs report that the washing machine in the basement laundry room needs all four tokens and that the Union Level 3 Key is inside it. That matches the files: four token spots, a washing machine puzzle in the building, and a key with no spot of its own. Watch the 2nd floor hallway, where walkthroughs mention an enemy behind the gate that spits poison through it.
| Lock | Where it is | Where the clue is |
|---|---|---|
| Combination lock | The side door in 1A / Supervisor | The four newspaper clippings in 1A, matched with documents in the tenants' apartments |
| Combination lock on a storage door | Storage Units, in the basement | Painted-over writing on the bedroom wall in 1C |
| Keypad | The Stairwell | — |
None of the three codes changes between saves, so the answers on the puzzle solutions page work in every game.
The side door in 1A / Supervisor. Walkthroughs describe four newspaper clippings about former tenants in the supervisor's apartment. Each tenant left a document in their own apartment: the Gallery Pamphlet from 1C, the Typewriter Page from 2A, the Birthday Card from 3A and the Water Damaged Diary from 3C. The lock takes apartment numbers. Behind the door are the Floor 4 Button and the 1911 Service Pistol.
The storage door. Walkthroughs report that thick paint covers writing on 1C's bedroom wall. The things you need to clear it are in this building: the Dried Up Paint Solvent in 2A and the alcohol still in 2B. How to put them together is a puzzle without a code, covered on the puzzle solutions page.
The Stairwell keypad. The game files list a keypad in the Stairwell, and the puzzle solutions page has its code. Walkthroughs written before launch reach the basement without entering it, so it is listed here only so you know it exists.
Items and documents use the game's own English names. Containers are listed by count only, because what a container holds varies.
At the Entrance: the Utility Room Key. Walkthroughs report that the building's map, a fire escape plan, hangs on the wall just inside. In the Utility Room: Spare Parts. Around the outside: four containers. Walkthroughs report a Memento Vessel Shard in a wind chime inside the boarded-up Shed, and another on the scaffolding outside the stairwell window.
In 1A / Supervisor: a Laundry Token and .38 Bullets; behind the side door, the Floor 4 Button, the 1911 Service Pistol and .223 Full Metal Jacket. In 1B: one container; one walkthrough reports a coffee pot that raises maximum stamina, reached through the mirror in 1C's bathroom. In 1C: the Gallery Pamphlet from 1C, a Bottle and three containers. In the 1st floor hallway: the Newspaper: Squatters Postpone Demolition document and Nails. The Elevator and Union Apartments 1st Floor are on this floor too.
In the Basement: .38 Bullets and one container. In the Laundry room (back): a Laundry Token, the V Guitar Pick memento and a .44 Magnum Cartridge; walkthroughs place the Waterlogged Poetry Book by a cracked wall back here. In Storage Units: a Battery. In Storage: a Laundry Token, Gasoline, two Bottles, a First Aid Kit and one container. At the bottom of the Stairwell: a Tonic (Healing) and one container.
In 2A: the Typewriter Page from 2A and two containers; walkthroughs report the Dried Up Paint Solvent here. In 2B: four Bottles and one container, plus the alcohol still walkthroughs describe. In 2C: three containers; one walkthrough reports a Memento Vessel Shard behind a vent. In the 2nd floor hallway: 12ga Buckshot and a Laundry Token.
In 3A: the Birthday Card from 3A and two containers. Walkthroughs report that the cat from the Outskirts turns up here. In 3B: Nails and one container. In 3C: the Water Damaged Diary from 3C and two containers. In the 3rd floor hallway: a Repair Kit and one container. On the stairs between the 3rd and 4th floors: the Hip Bag.
In 4A: .38 Bullets and one container. In 4B: a Diary Page and one container. In Union Apartments 4th Floor (Roof Access): two containers. On the Roof: the Apartment 4B Key, another Diary Page, a Bottle and two containers.
Gasoline and a Bottle combine into a Molotov Cocktail, based on player walkthroughs. For herbs, bottles and other combinations, see the Silver Pines beginner's guide.
You reach the building from Apartment Street in Downtown. Walkthroughs describe arriving through the movie theater's back exit and unlocking a gate there that opens a shortcut back into Downtown. From there, guides written before launch follow much the same order:
Walkthroughs report that turning off the bathtub tap in 4B starts a boss fight in the basement, and that you come back out of it holding Cable Station Bell (D). Walkthroughs suggest saving in the 4th floor safe room before you open 4B.
This page reads the full game's files, build 25806663, on October 8, 2026. The order of play, the washing machine, the clues for the code locks and the boss fight come from walkthroughs written on a review build before launch, so those are the parts that would differ if the release build changed this building.
Three points are still open. Walkthroughs reach the basement without the Stairwell keypad, so what it guards is still to be checked in the release build. Only one walkthrough mentions the coffee pot in 1B. And a few items those walkthroughs list do not appear in the release files, so this page follows the files.
There are four, all in the Union Apartments: in 1A / Supervisor on the 1st floor, in the 2nd floor hallway, in the back of the basement laundry room and in the basement Storage. This is from the game files, build 25806663.
Walkthroughs report that it is inside the basement washing machine, which opens once you put in all four Laundry Tokens. The key has no pickup spot of its own in the game files. It opens the door from the Stairwell to the 3rd floor.
On the Roof of the Union Apartments. Take the elevator to the 4th floor with the Floor 4 Button, go into Roof Access and climb the stairs. The key opens apartment 4B on the 4th floor.
Open the combination-locked side door in 1A / Supervisor, take the Floor 4 Button and fit it to the elevator's panel. The clue for the door is in the newspaper clippings in 1A; the code is on the puzzle solutions page.
The code is on the puzzle solutions page and is the same in every save. In the game, walkthroughs report that the clue is hidden under the paint on 1C's bedroom wall.
Take the Utility Room Key at the Entrance, switch off the broadcast in the Utility Room outside, then use the intercom by the entrance to call apartment 4B. Walkthroughs report that the inner door opens after that call.
Sources and version history for this guide: Silver Pines sources and versions.
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